“I leave my door unlocked all the time,” neighbor Heather said. “I have two dogs. When I walk the bulldog that doesn’t go more than a block, I always leave the door unlocked.”

Police said an unlocked door is just an open invitation for someone to rob you.

Neighbor Lauren said she’s been very careful.

“My mother’s taught me that from a very young age. She’s very anal about that kind of stuff, especially in a city like this where stuff happens on every block. You should definitely keep your doors locked,” she said.

Police said residents must be mindful of a simple precaution like locking the door and also be aware of possible burglars who will try to get in through impersonating deliverymen.

That’s how police arrested one man who they say got into apartment buildings by ringing in and saying he was with UPS. Upon getting buzzed into apartment buildings in SoHo and the West Village, he robbed residents of their property.

Have you ever had problems with leaving your doors unlocked? Tell us in our comments section below.